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  • Title: [Comparative study of minimal inhibitory concentration (MIC) and minimal lethal concentration (MLC) values for tetracycline, monocycline, erythromycin and rokitamycin against eleven strains of Chlamydia trachomatis].
    Author: Bianchi A, Scieux C, Robache S, Vassias I, Pérol Y.
    Journal: Pathol Biol (Paris); 1991 May; 39(5):442-5. PubMed ID: 1881673.
    Abstract:
    We evaluated the efficacy of tetracycline, minocycline, erythromycin and rokitamycin (rikamycine, TMS-19Q) in controlling in vitro propagation of Chlamydia trachomatis in HeLa 229 cells. Ten recent clinical isolates of Chlamydia trachomatis and one fast-growing strain were tested with inocula of 100-1,000 inclusion forming units per well of a 96-wheel microculture plate. Chlamydia trachomatis inclusions were detected by an immunoperoxidase-antiperoxidase procedure (PAP), including a genus-specific monoclonal antibody. Minimal inhibitory concentration (MIC) geometric means and ranges were respectively 0.128, 0.015-0.25 mg/l tetracycline, 0.001, less than or equal to 0.001-0.004 mg/l minocycline, 0.187, 0.031-0.5 mg/l erythromycin, and 0.005, less than or equal to 0.001-0.062 mg/l rokitamycin; minimal lethal concentration (MLC) geometric means and ranges were 6.79, 0.125-32 mg/l tetracycline, 0.225, 0.062-2 mg/l minocycline, 3.37, 1-32 mg/l erythromycin, and 0.112, 0.031-1 mg/l rokitamycin. Since rokitamycin appears to be the more bactericidal from the four antibiotics tested, clinical studies in sexually transmitted diseases are indicated.
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